Rectoguembelina

Daughter taxa: (blue => in age window 0-800Ma)
			Rectoguembelina cretacea
			Rectoguembelina sp. Specimens which cannot be assigned to established species

Taxonomy

Original description: Test with the early chambers arr anged in a biserial manner similar to Guembelina, later chambers uniserial and rounded in transverse section; chambers all inflated, distinct; sutures distinct, depressed; wall calcareous, thin, very finely perforate; aperture in the early stages similar to Guembelina, in the adult terminal, rounded, with a distinct neck.

Entries in the Catalog of original descriptions: Rectoguembelina

Geological Range:
Last occurrence (top): within Maastrichtian Stage (66.04-72.05Ma, top in Maastrichtian stage). Data source: Total of range of species in this database
First occurrence (base): within Maastrichtian Stage (66.04-72.05Ma, base in Maastrichtian stage). Data source: Total of range of species in this database

Plot of occurrence data:

Dec 2017 - Plotting of Neptune data has been re-enabled on the Mesozoic pages following revision of the age-models in Neptune. The data is, however, still very sparse for the Early Cretaceous

• Range-bar - range as quoted above, pink interval top occurs in, green interval base occurs in.
• Triangles indicate an event for which a precise placement has been suggested
• Neptune data: This is a higher taxon page so Neptune data is not plotted. See also: customisable plot Parent: Heterohelicidae

Rectoguembelina compiled by the pforams@mikrotax project team viewed: 8-7-2020 Taxon Search: Advanced Search Short stable page link: http://mikrotax.org/pforams/index.php?id=110489 Go to Archive.is to create a permanent copy of this page - citation notes

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